Ingredient Deep-Dive

Table salt vs sea salt vs Himalayan vs Real Salt: the geology premium, dissected

Q: Is sea salt healthier than table salt?

No. Both are >99% sodium chloride and have the same physiological effect. Sea salt is sometimes preferred for taste and texture, but the health-claim part of sea-salt marketing is mostly invented. Sea salts also typically lack iodine, which is a genuine downside for many people. Mined salts (table, Real Salt, Himalayan) have lower microplastic contamination, which is a real edge for mined over sea sources. For nutrition, both are essentially the same.

Every common cooking and electrolyte salt is >99% sodium chloride. The differences in trace mineral content are real but functionally negligible at consumption doses. Microplastic content in sea salts is a legitimate concern. Here's how to choose.

Published 2026-04-28·By Croix

Quick verdict

Table salt or sodium citrate for electrolyte mixes (cheapest, purest, dissolves cleanest). Sea / Himalayan / Real Salt for cooking aesthetics. There is no functional health benefit to the geological premium at the doses you actually consume.

Forms compared

Form	Absorption evidence	mg Sodium per g	Best for
Refined table salt (NaCl) 99.9% sodium chloride. Iodized in most US grocery brands (Morton, Diamond Crystal). Anti-caking agents (calcium silicate, sodium ferrocyanide) at FDA-permitted trace levels. Cheapest and purest.	—	393 mg	Electrolyte mixes; baking; daily cooking; anywhere fineness and clean dissolution matter.
Kosher salt Mechanically pressed flake structure. Same NaCl content as table salt; the texture is the differentiator (better grip when seasoning by hand). Diamond Crystal and Morton are the dominant US brands and have noticeably different grain shapes.	—	395 mg	Cooking by hand; dry-brining; sprinkling at the end of cooking.
Sea salt (generic) Evaporated from seawater. ~99.5% NaCl with trace minerals (Mg, Ca, K) at <0.5% by weight. Microplastic content has been detected in most commercial sea salts (Karami 2017, Yang 2017) — typically 0-1681 particles per kg.	—	388 mg	Finishing cooking; aesthetic uses where texture matters.
Himalayan pink salt Mined from the Khewra Salt Mine in Pakistan. Pink color from iron oxide. ~98% NaCl with trace minerals at <2% by weight; the marketed "84 minerals" claim is technically true at microgram levels but functionally meaningless.	—	388 mg	Finishing cooking; salt blocks; where the visual matters.
Redmond Real Salt Mined from a buried Jurassic-era deposit in central Utah. ~98% NaCl with trace minerals from the deposit. Marketed as "unrefined" and pre-pollution; trace mineral story is honest but functionally the same as Himalayan at consumption doses.	—	390 mg	Cooking; the editorial story; people who specifically want a US-mined salt.
Sodium citrate Sodium bound to citrate. Lower elemental sodium per gram (large citrate counter-ion) but buffering effect — gentler on the stomach at high sodium doses. Used clinically and in some electrolyte drinks for gut tolerance.	—	267 mg	High-sodium electrolyte drinks (LMNT-style); gut-sensitive users.

The honest read

The geological-salt premium is the most successful marketing in the food industry. Pink Himalayan salt sells for 5-30× the price of Diamond Crystal kosher; Redmond Real Salt and fleur de sel are 10-50× the price of Morton table salt. The premise is that unrefined ancient or sea-evaporated salts deliver trace minerals that refined salts have lost in processing. The technical claim is true: there are detectable trace minerals in unrefined salts. The functional claim is what gets misrepresented: those trace minerals exist at microgram-per-gram levels, which means a 5g serving of pink salt delivers a few micrograms of magnesium, iron, manganese, etc. — orders of magnitude below daily RDAs. You would hit toxic NaCl intake before the trace minerals contributed a meaningful daily dose of any of them.

What's genuinely real in the comparison is microplastic content in commercial sea salts. Karami et al (2017) sampled 17 sea salt brands across 8 countries and found microplastic particles in nearly all of them — typically 0-1681 particles per kg. Yang et al (2017) sampled 15 brands of Chinese sea salt and detected microplastics in every one. The particles are mostly polypropylene, polyethylene, and polyethylene terephthalate fragments — consistent with marine plastic pollution. Mined salts (table salt, Real Salt, Himalayan pink) have lower microplastic contamination because they come from deposits laid down before plastic existed. If microplastic intake is a concern, this is a real reason to prefer mined over sea-evaporated salts. The total exposure from salt is small compared to other dietary sources (fish, water), but it is not zero.

On iodine, the comparison flips. Table salt in the US has been iodized since 1924 to address iodine deficiency goiter, which it largely solved. Most premium salts (sea salt, Himalayan, kosher, Real Salt) are not iodized. If you've replaced all your table salt with a premium SKU and don't eat much dairy or seafood, you can develop iodine insufficiency over time — particularly relevant for women of reproductive age, since maternal iodine status affects fetal brain development. The CDC and WHO continue to recommend iodized salt as a public-health measure. The premium-salt market has effectively undone seventy years of iodization policy in some kitchens, without most people noticing.

For electrolyte drinks specifically, the salt question is simple: use refined table salt or, for high-sodium formulations like LMNT or Re-Lyte profiles, blend with sodium citrate. Refined salt dissolves cleanly, has the highest sodium-per-gram density, costs almost nothing per serving, and the trace minerals don't matter at the doses involved. Sodium citrate is buffering — adding 30-40% citrate to a 1000mg-sodium drink reduces stomach upset for sensitive users. For cooking, choose by texture, taste sensitivity, and aesthetic preference; the geological story is editorially fun but not functionally meaningful at consumption doses.

An honest framing: pay for premium salt where it actually matters (finishing salts where texture and crunch are part of the experience; iodized salt for iodine intake; sodium citrate for high-sodium drink tolerance). Don't pay for it as a health intervention. The 60+ trace minerals in your $25 bag of pink salt are not contributing to your daily nutrition in any way you can measure or feel.

Buyer's guide

For electrolyte mixes (DIY)

Refined table salt (Morton, Diamond Crystal) at $1-3 per 26oz container. For high-sodium mixes (>500mg/serving), blend 60% table salt + 40% sodium citrate for buffering.

For cooking texture

Diamond Crystal kosher (US restaurant standard) or fleur de sel for finishing. Texture is the actual differentiator; sodium content is identical to table salt.

For iodine intake

Iodized table salt — the cheapest and most reliable iodine source for people who don't eat dairy, seafood, or seaweed regularly. ~150mcg per gram.

For microplastic minimization

Mined salts (table salt, Real Salt, Himalayan, rock salt). Pre-plastic deposits are not contaminated the way marine sources are.

For high-sodium electrolyte drinks

Sodium citrate buffers stomach upset at 800-1000mg+ sodium doses. Blend 60% NaCl + 40% sodium citrate (by sodium content) for clean tolerance.

For premium aesthetic

Real Salt, fleur de sel, Maldon, smoked salts — pay for the visual and flavor experience, not for nutritional benefit. The editorial story is real, the functional claim isn't.

Frequently asked

Are the 60+ trace minerals in pink Himalayan salt actually doing anything?+

No, not at consumption doses. The trace minerals (calcium, magnesium, potassium, iron, etc.) are present at microgram-per-gram levels — typically <2% of the salt by weight. A 5g serving delivers a few micrograms of each. Daily RDAs are in the milligram-to-gram range. You'd hit toxic sodium intake (~6g+ NaCl per day) before the trace minerals contributed a meaningful percentage of any daily target. The mineral content is technically real and functionally negligible.

Is sea salt healthier than table salt?+

No. Both are >99% sodium chloride and have the same physiological effect. Sea salt is sometimes preferred for taste and texture, but the health-claim part of sea-salt marketing is mostly invented. Sea salts also typically lack iodine, which is a genuine downside for many people. Mined salts (table, Real Salt, Himalayan) have lower microplastic contamination, which is a real edge for mined over sea sources. For nutrition, both are essentially the same.

How much microplastic is in commercial sea salt?+

Variable. Karami et al (2017) found 0-1681 particles per kg across 17 commercial sea salt brands; Yang et al (2017) found microplastics in 100% of 15 Chinese sea salt samples. Particles are mostly polypropylene, polyethylene, and PET — consistent with marine plastic pollution. Total dietary exposure from salt is small compared to fish, bottled water, and seafood — but if you're optimizing for low microplastic intake, mined salts are the cleaner choice.

Why do some electrolyte drinks use sodium citrate instead of table salt?+

Buffering. At high sodium doses (800-1000mg+ per drink), pure NaCl can hit the stomach hard and cause some users discomfort. Sodium citrate is alkalinizing in metabolism (citrate becomes bicarbonate) and tends to be gentler on gut tolerance. Most high-sodium electrolyte products (LMNT, Re-Lyte) use a blend of NaCl and sodium citrate for this reason. The DIY Lyte Lab builder defaults to a 60% NaCl / 40% sodium citrate blend at high sodium doses for the same gut-tolerance reason.

Is iodized salt worth it, or is sea salt the better choice?+

Iodized table salt is the right default for most people. The US iodization program effectively eliminated goiter and continues to be the most reliable iodine source for people who don't eat dairy, seafood, or seaweed regularly. Sea salt and most premium salts are not iodized — switching entirely to them can produce iodine insufficiency over time, particularly for women of reproductive age (where maternal iodine status affects fetal development). Use iodized salt for daily cooking; reserve sea salt or premium salts for finishing where texture matters.

What about salt-substitute brands like NoSalt and Nu-Salt?+

These are 100% potassium chloride, not low-sodium salt — they're a different ingredient entirely. Marketed for people on sodium restriction (hypertension, heart disease) who still want a salty taste; they deliver salty flavor with zero sodium. They're also useful as a clean bulk-KCl source for DIY electrolyte mixes. "Lite" salts (Morton Lite Salt, etc.) are 50/50 NaCl/KCl blends and split the difference. Be careful using KCl substitutes if you're on ACE inhibitors or potassium-sparing diuretics, where added potassium can be cardiac risk.

Sources & references

Sodium — Health Professional Fact Sheet — NIH Office of Dietary Supplements
Iodine — Health Professional Fact Sheet — NIH Office of Dietary Supplements
The presence of microplastics in commercial salts from different countries (Karami et al, 2017) — PubMed (U.S. National Library of Medicine)
Microplastic Pollution in Table Salts from China (Yang et al, 2015) — PubMed (U.S. National Library of Medicine)
Salt Statistics and Information — U.S. Geological Survey

DIY LMNT (uses NaCl + sodium citrate blend)High-sodium drink — the citrate buffer matters
DIY Re-LyteThe Real Salt geological story, dissected
Build a custom mixChoose your salt blend by use case